Door-lock.



E- NILSEN.l

Doon LocK. APPLICATION FILED IAN. 30. 1.95. y l 1,164,849. Y Patented Dec. 21, 1915.

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E INAR NILSEN, 0F BALTIMORE, MARYLAND.`

DOOR-LOCK'.

-v Specication of Letters Patent.

Patented Dee. 21, 1915.

Application led January 30, 1915. Serial No. 5,267.

To all whom @it may concern.'

Be it known that I, EINAR NILSEN, a sub- 'ject of the King of Norway, residing at comprises a spindle for actuating the door. bolt, said spindle being' provided With a longitudinally. arranged locking tumbler adapted to interlock ywith the lock casing upon movement of a tumbler releasing member by insertion of a specially constructed key through one passage in the spindle, thus locking the door, unlocking of the door, however, being accomplished only by movement of the tumbler upon insertion of said key through an independent passage of said spindle whereby to enable said. releasing memberto assume its initial coacting relation with respect to the tumbler.

It is also comprehended to supply independent lockingy means operable from theinside of the door only, which renders the locking mechanism hereinbefore mentioned inoperable.

The .invention comprises certain novel constructions, arrangements, and combinations of parts as will be hereinafter de scribed and claimed.

In the drawings: Figure 1 is a vertical, longitudinal, sectional view through an embodiment of the invention, the door to which the same is attached being broken away and shown in section. Fig. 2 is a vertical transverse sectional view on the line 2 2'of Fig. 1. Fig. 3 is a horizontal sectional view -taken on the plane indicated. by the line 3 3 of Fig. 1. Fig. 4 is a vertical sectional view on the line 4- 4 of Fig. 1. Fig. 5 is a detail vertical section on the line 5 5 of Fig. 1. Fig. 6 is a detail sectional view through the locking mechanism of the device and taken on the plane indicated by the line 6 6 of Fig. 2. Fig. 7 is a vertical when desired.

sectional view on the" line 7 7 of Fig. 2. Fig. 8 is an enlarged vertical sectional'view on the line 8 8 of Fig. 2, looking in the direction of the arrows. Fig. 9 is a sectional view on the line 9 9 of Fig. 3. Fig. 10 is a detail perspective View of the tubular guide casing for the locking bolt. Fig. 11 is a detail elevation of the inside locking pin member. Fig. 12 is a longitudinal sectonal View of the preferred embodiment of a key for operating the locking mechanism of this invention. Fig. 13 is a detail sectional view showing application of a removal cap to replace outer door handle v Throughout the following detail description, and on the several figures of the draw.

ings, similar parts are referred to by like reference characters.

Referring to the drawings, it will be noted from Fig. 1 that the embodiment of my in vention consists of a lock casing 1 which is adapted to be secured in a door 2 at its swinging end and in said casing is slidably disposed a locking bolt 3 having its inner eX- tremity operable in a tubular guide casing 4 which is detachably connected tol the end wall of the lock casing 1. Within the casing 4 is disposed a spring 5 which normally holds the locking bolt 3 projected from the lock casing 1 and into cooperation with thekeeper plate 6 attached to the door j amb 7.

Passing transversely through the lock casing 1, is a spindle8 shown most clearly in Figs. 2 and 3 and ,mounted upon sald spindle within the lock casing is a toothed operating member 9 coperating with the upper toothed edge of thev locking bolt 3.

The bolt may be retracted against the tension of the spring 5 obviously by rotation of the spindle 8, and said rotation is lim-l ited by means of the oppo-sing shoulders 10, 10 formed on" the periphery of the member 9 and which shoulders coact with.a doublearmed projection 11 formed on the casing 1. Sliding movement of the bolt is furthermore guided by the lug 12 formed on the cas-l ing adjacent the outer end thereof and coacting with the upper edge of said bolt as shown in Fig. 1 of the drawing. Arranged Y in a longitudinally extending slot 13 formed in the outer portion of the spindle 8 is a pivoted locking tumbler 14, the pivot of which s indicated at 15 and the inner end of said tumbler is formed with an enlarged lockingl head 16 which is adapted to be projected from the spindle into locking engagement with the casingl, the projection 11 of which is formed with a recess 17 to receive said head,by means to be more clearly described l' hereinafter.

It will be observed by reference to Fig. 2

that the outer end of the tumbler extends into an enlarged hollow casing 8 formed on the spindle and as most clearly shown in Fig.4 6 and Fig. 9, the tumbler head 16 is normally held in inoperative disengaged positionv such as most clearly depictedv in Fig. 2 by means of a tumbler releasing' member or detent 18 and slidably mounted trans-v versely of' the spindle head 8 and engaging beneath the outer end of said tumbler 14. The detent mentioned is slidable, at one end, in a plug 19 having threaded connection at one side with the spindle head 8 and formed at its other side with a threaded boss 19 to receive a handle 20. The plug 19 is recessed to accommodate the detent 18 and in said recess is disposed a spring 21 lnormally holding said detent in al position e pin 22 seated in a screw plug 23 and normally bearing against the upper surface of 'said tumbler extremity, causes the inner 1 special construction for operating the tumhead of the tumbler to be projected from the spindle and through the slot 9 of the bolt actuating member 9 into the recess 17 ofthe projection 11 of the casing'thereby locking the bolt 2 against movement. when the vspindle is attempted to be rotated. As a matter of convenience of insertion of the detent into the extremity of the spindle, said spindle. is provided therebeneath with a threaded plug 24 which has formed therein a key-hole or passage 25 normally covered by a pivoted cap 26. It will be observedby reference to Figs. 6 and 9 that the spindle head 8 is furthermore provided with a second key-'hole or passage 27 at one side in alinement with one end of. the detent 18.

As thus far described, the operation of this device is as follows: Assuming that the occupant of a house desired to lock the door from the outside he employs a key of bler 14; this key is best shown in Fig. 12 of thel drawing and consists of an outer tubular casing l28 hav-ing slidably mounted therein a tapering tube 29 through which extends a rod 30 passing also into the cas- A ing 28. The casing 29 is held in outward projected position by the spring-31 and pressure against tube 29 causes the rod 30 to be projectedv therefrom in an obvious manner to those skilled in the art to which this invention refers. rlhe key member is preferably of this form and provided with a ring 32 at one end for attachment to a chain but it will be understood that any other desired form of implement may be used in the operation of my lock.

To lock the door the key rod 30 is inserted i handle 20. The key-hole passage 27 is provided with a pivoted cap 33 and theunlocking of the door has now been rendered quite difficult unless the operator is acquainted with the manner in which the tumbler may be disengaged from its locking position. vThis is accomplished` by inserting the key rod 30 into the key-hole 25 of the plug 24 secured beneath the outer spindle end,"until the rod contacts with the outer extremity of the tumbler 14 whereupon pressurefthereagainst raises said tumbler against its spring member until it is freed from the recess 18 of the detent 18 allowing said detent to be actuated longitudinally by its spring 21 so as to engage beneath the tumbler end as shown in Figs. 6 and 9. This frees thespindle so that the same may be rotated by raising upwardly on the handle 20 and thelocking bolt 3 -thereby retracted. I preferably arrange the spindle for rotation only on upward movement of the handle 20 to make-the operation ofthe device somewhat unusual. The spindleaS/is held inoper position in the roo dgor by the outer door plate 34 and on the vv.opposite or inner side of the door by a similar plate 35. As a means for rendering the outer mechanism of the door lock inopera-. tive from the inside of the door, I preferably provide the door plate 35 with a vertical groove in which is slidably mounted a lock- .,ing pin 36 having a spring 36 secured thereto for providing frictional sliding action to said pin. This pin is adapted to engageV in a recess 37 formed in the spindle 8 directly beneath the pin as most clearly shown in Fig. 8 of the drawings and when4 introduced into the recess the spindle is locked against rotation in an obvious manner. The inner end of the spindle carries the inner handle 38, integral with or having threaded connection with the enlarged head"`39 adapted to be slid on to the spindle extrennty and locked in position thereon by a set screw 40 which engages in a longitudinal groove 41 formed in the upper spindle surface.

As a part of the detail construction of this lock, I preferably form the guide casing 4, which has threaded connection with the lock casing 1 as hereinbefore described, with a plurality of apertures 4 by means of which to facilitate the removal of the'casing when desired as by inserting a pin or other instrument intoisaid apertures to unscrew the tube.

' The handles 20 and38 also are preferably hollow so as to enable the introduction there- Iinto of a disinfectant such as indicated at 42 in Fig. 9 of the drawing, the `handles being' formed with a plurality of apertures 43 whereby the disinfectant may perform its proper function. The .handles are provided with a removable cap at their ends designated 44 to enable the disinfectant to be inserted thereinto. A cap 45 is also provided to protect the boss 19 when the outer handle is removed temporarily.

It will be obvious that any desired means may be provided in my construction of lock for operating the lock tumbler from the inside of the door, though this detail of construction is not an essential feature. f

Having thus described my invention, what I claim as new is:

1. The combination of a door lock comprising a casing, a spindle passing therethrough, a tumbler arranged in the spindle and adapted to interlock with the casing, releasable means engaging the tumbler and nor-V mally holding it out of interlocking engagement, and a key member forl moving said releasable means longitudinally to release thel tumblerffor assuming locking position, said key member constituting actuating'- means for the tumbler'for moving the same into unlocked position and permitting restoration of tlie releasable means to initial tumbler engaging position.

2. The combination of a door lock comprising'acasing, a spindle disposed therein and having key openings arranged at different points, a tumbler pivoted intermedlate its ends and arranged longitudinally in the spindle and adapted to interlock at one end thereof with the casing, means coacting with the other end of the tumbler for holding it out ofvlocking engagement, and a key adapted for insertion in the -spindle in one direction in one of the key openings for actuating said means to release the tumbler for locking engagement, said key being i'nsertibleinto the spindle into another opening in'another direction to actuate the tumbler for, restoring said tumbler coacting means to normal position.

3. Avdoor lock comprising a casing, a locking bolt slidably mounted therein, a spindle passing through said casing, an actuating member carried by said spindle for sliding the bolt upon rotation oflthe spindle, a pivoted tumbler arranged in the spindle and lnormally operable therewith, a detent .mounted in the spindle transversely of the tumbler and adjacent to one end thereof whereby to normally hold the tumbler in inoperativev position, a key adapte'd to engage the detent to slide the same into a position releasing the tumbler for movement of its mit the tumbler to assume its initial position.

4. A door lock comprising a casing, a locking bolt slidably mounted therein, a. spindle passing through said casing, an actuating member carried by said spindle for sliding the bolt upon rotation of the spindle, a pivoted tumbler arranged in the spindle and normally operable therewith, a spring actuatedv detent arranged transversely of the tumbler and engaging beneath one end of the same to hold said tumbler normally in inoperative position, said detent having a recess to'receivethe tumbler end when moved longitudinally whereby to permit projection of the other end of the tumbler into operative locking engagement, and a key for slid` ing 'the detent.

5. A door lock comprising a casing, a locking bolt slidably mounted therein, a spindle passing through said casing, an actuating member carried by said spindle for sliding the bolt upon rotation of the spindle, a pivoted tumbler arranged in the spindle and normally operable therewith, a spring actuated detent arranged transversely of the tumbler and engaging beneath one end of the same to hold said tumbler normally in inoperative position, said detent having a loo recess to receive the tumbler end when moved longitudinally whereby to permit projection of the other end of the tumbler into operative locking engagement, and "a key for sliding the detent against tension of its spring, said key being engageable with the tumbler to release the detent whereby to restore the tumbler to initial inoperative position.

6. The combination of a door lock com- `prising a casing, a. spindle passing therethrough and terminating' at one` end in a hollow head, a tumbler pivotally mounted in said spindle and adapted to engage the casing at one end to prevent rotation of said spindle, the opposite end of the tumbler extending into the hollow spindle head aforesaid, a handle detachably secured to the spindle head, means slidably mounted in the head and adapted vto engage beneath the tumbler extremity for holding the same in inoperative position, the head aforesaid having an aperture adjacent the last-mentioned means, and a 'key adapted to be inserted in saidaperture for moving the tumbler en aging means into position freeing the turn ler extremity whereby to permit of locking engagement of said tumbler with the casing.

7. The combination of a door lock comprising a casing, a spindle passing therethrough and terminating at one end in a hollow head, a tumbler pivotally mounted in said spindlel and adaptedto engage the casing at'one end to prevent rotation of said spindle, the opposite end of the tumbler extending into the hollow spindle head afores'aid, a handle detachably secured to the spindle head, means slidably mounted in the head and adapted to engage beneath the tumbler extremity 'for holding the same in inoperative position, the head aforesaid having an aperture adjacent the last-mentioned means, and a keyadapted to be inserted in said aperture for moving the tumbler engaging means into position freeing the tumbler extremity whereby to permit of locking engagement of said tumbler with the casing, the spindle head also having a second opening therein in alinement with the tumbler extremity whereby to permit of insertion of the key into coperation with the tumbler to disengage the same from the casing and render the tumbler engaging means free to engage the tumbler for holding the same inoperative.

8. A door lock comprising a casing, a locking bolt slidably mounted therein, a spindle passing through said casing, an actuating member carried by said spindle for sliding the bolt upon rotation of the spindle, a

. spring actuated tumbler pivotally mounted in the spindle' and normally operable therewith, a spring actuated detent slidably mounted in the spindle transversely of the tumbler and normallyl holding the same in inoperative position, the spindle having a key-hole to permit access to the detent for actuation of the same into a position freeing the tumbler for locking engagement with Y the lock casing, the spindle having a second key-hole to permit access to the tumbler for actuating thelsame to disengage it from the casing, a key for actuating said detent and tumbler upon insertion in the respective keyholes aforesaid, and a handle carried by each -end of the spindle for rotating the s ame.

In testimony whereof I aiix my slgnature in presence of two witnesses.

EINAR NILSEN.

Witnesses:

EDWARD F. JUDGE, WILLIAM F. MCMONAGLE. 

